Coupling.



T. J. MADIGAN. COUPLING. APPLIOATIONHLBD AUG. 21, maf

j, Patented Jan. 26, 1915.

#mill/limi TVN l t @Wi t" TNQ o strains namen-n, i orvnnw wenn',

centralina, rnc., -nnw wenn,

az, n.

assiettes. r.ro aanmeten' i/iannrncfruntne TJ S; @Old HUEATION OIF i'cene: ine

nanfa/@56,

' Specincation of Letters Patent. l "laigmd 553371,26? 19151:

' appli-cation nea meestal, iam. serial. nofaeaeia.

n; azz @am may comm.'

Be it known that l, THOMAS J. Maureen,

`acitizen oi' the United States, residing in the city ot' New York,county and State of New York,'hav`e invented certain'new and u's'eulimprovements in Couplings; and l do'here-4 by declarethe following to bea full, clear,

y and'eXactfde'scr-iption of the inventiomsuch Y With couplings nowI incommon use there is difficulty falining the two-members of t'h'efcupling preparatory to tightening up the cdll'ztr,"ai1d 4this isparticularly the case when thetr'e hose is oftheystandard large sizesand the connection is being made by but one man.-. ltfgthe parts are notin true al-inemeiit there is danger that the threads -will not "b'e inproper `engagement at the start- Yand that vsubsequent turning of thecollar will vstrip 'or deform the threads. lThis deformation may happeneven before the turning movement is begun and simply byy jamming theparts together in anedort t'obrin'gthem into proper alineinent. Withinaccuracy inthe threads, such fas might result from dropping thecouplings on the payement, and -such -as is very commen with tirehose'that 'has been used, the deformation, though'slight, may be of sucha character as to make it almost impossible for one man to hold the twomembers in proper register and then't'urn up :the collar to clamp 'theparte mardier. v

'tit is the objet of the'pr'esent invention to provide a couplinghavingmeans `for alin- -ing the two members beiore the threaded parts comeinto engagement, the partsbeing so constructed that the twolr'r'ien'ibers can be 'telescoped together in'to 'final position withone part permanently seated within the other, without ythe danger ofstriking or 'jamming the threads and without the necessity for turningany threaded member. With the parts thus in their final position,

i vthe threaded collar can be turned up to clamp 'them in that position,thus insuring a water-tight connection and one so -strong as to resistall ofthe strains'o' 'ordinary use.

@their y'objeets and advantages of the presentinvention will be madeclear bythe iol- 'pedance lowing detailed description, .Whclf-isatgbetaken in conjunction with the accompanying drawings, wherein:

Figure l is a sectional elevationV through the coupling showing theparts presented 'ready for connection; Fig.` 2 shows the couplingassembled, .parts being broken away to disclose the interlockingrelation. of the two members; and F ig. Eis a disassembledillustrationof a' modification showing the mem! bers in section.

In the construction illustrated. in, the

'dra'lwings, the coupling includes socket memy bers l and 2 andthethreaded collar. Socket member `1 is provided with annular .notches orrecesses 4; forming a socket for the reception of the end lof a lengthof tire hose 5, this end being uclamped in place' by an expanded ring 6and locked by an a' nular collar 7 in threaded engagement it ith -memberl. 4This arrangement insures ap r'- manent fastening between'theFlexible liose and socket member 1. `Socket member 1 carriesfafpair ofvwrench studs 8 and a nipple 9, the front edge lOofwhich is rounded to'form -a smooth bearing surface forv the .purposesheiemafter explained..This nipple 9 is screw-threaded n the outside but the threads terminatea short distance in the rearof the rounded'ront edge 1,0 of the nipple.Positioned within socket member l somewhat in the rear of thescrew-threads of'the nipple, and pr'eierably about in alinem'ent withstuds 8, is an annular boss 11, the

interior diameter of which is substantially that of the hose 5 an theexpanded ring 6,

and the Iforward face of which carries a thin gasket 12 of lead or cthersuitable material serviceable to form a'seat against which the othermemberof the cou-plingrmay be forced. Socket member 2 also carries anexpander ring 13 for holding its length of lire hose 14 'withinthesocket, but the central portion 15 of this member isdevoid ofscrew-threads both inside and outside and is of a diameter substantiallythat of the expander ring 13 and hose 14, so that when the parts areassembled, as shown in Fig. A2, there will be through the coupling anopening of uniform bore through which water may be transmitted at highLvelocity without substantial im- Socket member 2 has its forwardportion shaped to-form a nipple 16 acting as a guiding sleeve bytelescoping within nipple 9 ot the other socket member. The

'foward end'rr of this guiding sleeve is cut `straight across .so that'it `can seat on the lead gasket 12 and form a water-tight jointthroughout the entire circumference' of the boss. Positioned betweensleeve 16 andthe central portion 1'5 of this socket member is anexterior -boss 18'having its forward edge cupped to form an'annularrecess or socket close joint.

4The ring member 3 encirclessocket meming against shoulder 21 limittherearward 19, wherein the rounded front edge 10 of the other socketmember may seat to form a 'movement of the ring or collar and bystriking against boss 1 8, 1imit.its,y forward movement. The rearor'jtrai'ling. portion 22 of this collar 3 slides freely back and forthover the tail of socket member 2 which af- I' Vfords' a smooth bearinAd'eiection while permitting rea y movement.

.hold the threaded col ar in propeltalinef ment andto give it stabilityaa-inlst lateral towardand from the opposing member of the coupling. Thescrewrthreads' 23 with which collar 3 is provided, may extend from boss20 alm'ost to the forward edge' of the. -'collar.' Wrench studs 24 are.easy mgnpulation of the collar. ov Ibiingrthexmembers-into lockingengagement the operator first slides the threaded collar backward into,its-.rearmost position, as shown in Fig. 1, andthen brings the twomembers into alinement, as there show n, and. then .telescopes theguiding sleeve' 16 yinto th'e nipple -9, until. the forward endigl'llfofthat sleeve reaches its seat on thelead gasket 12, simultaneously bringling thefr'ontedge 10 of nipple 9 into the annular 'ecess or socket' 19.All of this is done withthe threaded collar 3 in its retracted'positionand presents no danger of jamming 'the -threads of that collar or of nip'le 9'. With the socket members thus hel their 'final i' osition andV'secured against displacement y the guiding sleeve 16, the operator mayshde the threaded collar 3 down until it be 'ns to take onthe threads ofnipple 9', wit the assurance that the threads are in register and that aforcible advanceof the collar will vnot strip any of the threads butwill serve to correct such deformation, if any, as may have resultedfrom hard usage while the parts were dis-. assembled. By making the boss18 of proper width, the final position of threaded collar 3 f will 'besuch that boss 2O forms `a vclose 'connection will boss 18, with theresult that any leakage lwhich might take place around. the forward end17 and up between the two nipples 9- and 16, will meet opposition notonly because of the close fit besurface .adapted to provided for tweenthe front'edge 10 and its socket 19,

but because of the clos'e -`fit between the two coupling in that figurecomprises a socketA member 25 having eXtema'lsCreW-threads 26 and anolfset forming a nipple 27 Within the .nipple and extending' back be.-yond` `the Vthreads is a cylindrical recess which terminates at anannular boss 28 serving as a seat for the reception of 'a part of the'opposing member o Rearwardly of this boss" the memberv25 in# creases ininternal-diameter at 29 'and may beprovided .with internal screw-threadsfor the reception of the threaded end of aV tube or pipe;` The opposingAmember of the coupling of Fig. -3 is of cylindrical outline at31, mayhave its rear portion provided with screw-threads '32 for the-receptionof' 'a=threaded pipe or tube. ately in front of thecylindricalportijoxiil is a-nippl'e 33,' and within this andsjspa'cdtherefromis a nipple 34 suitable foiiatng as aiguidingsleeve andAhaving' ane-Xternal diameter corresponding withfthecylindrical openingthrough nipple-27j s'othat when 'the parts are telescoped together,(sleeve 34 can slide through toward seat 28 and nipple 27 will advanceinto the annular space between nipples 33 and 34: in 'which itjits witha snug t, until it seats permanently on `a lead 'or other suitablegasket 35 at the bottom of that recess. There is also provided athreaded collar 36 having internal screw-threads 37 at its forward end,and having an internal flange 38 at its rear portion so disposed thatwhen the. collar isshoved forward over its corresponding couplingmember, the flange willsllde along over the cylindrical surface' 31'until it 'strikes the' `shoulder at the rear of nipple 33, it beingunderstood that this forward advancement is eiected when the collar'is'screwed on the opposing member Immedi# the coupler.

them together into nal position, the nipplel telescoping into the oposing nipple and the latter reaching its al seat on 'gasket 35befordcollar 36 is shoved forward A into en agement with threads 26.There is there oreno jamming of threads or distortion of threads due toroughhanmaepee dling, and with the parts in the position described, thecollar will be in proper alinement and its forward' advance will bringits threads inregister with the coperating threads on the other part.When the joint is completed there is a tight connection not only atgasket 35 but there is a`close fit along the inner face of nipple 33 andalong the outer face of nipple 34, and there may even be provided aclose. joint at shoulder 28, so that even in case of wear at the gasket35, or other imperfection in the tit at that gasket, no great' quantity'of leakage can occur through the coupling. s

I claim:

1. In a coupling, thecombination of a pair of socket members adapted forattachment to tubular members, a nipple seat in each socket member,nipples `on said lmembers adapted to slidingly telescope together untilthey meet said seats when said members are advanced into coupledrelation, and a threaded collar movable forward after said members arein coupled relation to secure said members against separation.

2. In a coupling, the combination of a pair of socket members havingmeans for .attachment to hose "i ends, and a threaded collar slidinglymounted on one of said members, a nipple `on each of said members, seatsfor the endsof said nipples, said nipples being positioned to slidinglytele scope onewithin the other until they take on said seats when ytheparts are pushed together, and being capable of advancement into finalposition without movement ofthe threaded collar, and one of the nipplesbring provided with screw-threads` for engagement with the collar whenthe latter is advanced, t0 secure said-members against Withdrawal fromone another.

In a coupling, a socket member having a nipple provided on its exteriorwith screwthreads, said nipple having .a smooth-cylindrical boreterminatingin an annular boss, agasket on saldboss, a second socketmember provided with a nipple shaped to slidingly telescope within thethreaded nipplel and to seat on said gasket, and a threaded collarpositioned on said second member and slidingly mounted thereon foradvancement into engagement with the threaded nipple after said membershave been completely telescopod together.

4. ln a coupling of the character described, the combination of a socketmember bearing external screw-threads and having a nipple with a smoothcylindrical recess extending through said nipple beyond said threads, anopposing socket member bearing a nipple adapted to slidingly telescopewithin the nipple first mentioned and insuring proper alinement of thevtwo socket members as they are advanced into coupledrelation, and athreaded collar slidingly mounted on the second socket member andadapted for engagement with the threads on the first socket member onlyafter the socket members have been completely telescoped. to gether,Said collar serving to lock the socket members in telescoped relation.

5. In al coupling, the combination of a socket member having an endportion exteriorly threaded and having the threaded portion of uniformbore, and' asecond socket member having a smooth guiding portion adaptedto pass through the internally threaded portion of the irst member andto snugly lit therein, compelling proper alinement of the two socketmembers during their sliding advancement into coupled relation, and aninternally threaded member positioned -on said second socket memberprovided with screw-threads for engagement with the threads on the -irstsocket member,

